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Release notes for SambaStack, including new features, enhancements, and fixes.

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SambaStack v0.4.8 Release

Release Date: March 10, 2026 This release introduces air-gapped deployment support, custom checkpoint management with NFS storage, swappable model configurations, and multiple API enhancements for improved OpenAI compatibility.

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New Features and Enhancements

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SambaStack Air-gapped Support

Added support for air-gapped mode of operation, enabling secure, isolated deployments.
  • Install, upgrade, and setup for air-gapped configurations is performed in conjunction with SambaNova support.
  • Ongoing administration (Auth, User Management, Custom DB) is designed for self-service and follows the same workflows as on-prem deployments.
Install, setup, port forwarding to access Keycloak UI, and upgrade steps are not documented for air-gapped deployments due to varying customer network configurations. Please work with SambaNova support for these workflows.

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Custom Checkpoints with NFS Storage

Added the ability to reference custom checkpoints from customer-provided NFS storage in deployments.

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Swappable Models in Bundles

Added configurable model swapping behavior to optimize high-bandwidth memory (HBM) utilization.
  • By default, all models in bundles can be swapped out of HBM and replaced with other models in DDR memory.
  • Use the swappable: <boolean> field in the bundle YAML definition to enable or disable this behavior.
  • Default value is true. When set to false, the model remains in HBM and cannot be swapped out, ensuring zero switching time for requests to that model.

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API Improvements and Fixes

Enhancements to improve OpenAI compatibility across the chat/completions endpoint.

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Text Object Support in User Message Content

  • Added support for text objects in content arrays, matching OpenAI ChatCompletionsContentPartText specification.
  • Enabled for: gpt-oss-120b, DeepSeek-V3.1, DeepSeek-V3.1-Terminus, DeepSeek-V3.2, DeepSeek-V3-0324, Qwen3-32B, Qwen3-235B.

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Response Format Text Option

  • Fixed an issue where response_format=text would throw an error.
  • The endpoint now supports all OpenAI formats: text, json_object, json_schema.

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Extended Temperature Range

  • Expanded temperature range from 0.0–1.0 to 0.0–2.0, matching OpenAI specification.

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Tool Calling Number Type Fix

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Parallel Tool Calls Support

  • Added parallel_tool_calls parameter support.
  • When set to false, the model will make at most one tool call per response, matching OpenAI specification.

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Streaming Token Usage Reporting

  • Added support for token usage reporting in each chunk of stream.

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Known Issues

  • Parallel Tool Calls with Constrained Decoding
  • The following models return null for logprobs even when logprobs=true or top_logprobs is set. The parameters are accepted without error but have no effect.
    • Llama-4-Maverick-17B-128E-Instruct
    • Whisper-Large-v3

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SambaStack Initial Release

Release Date: September 19, 2025 This release introduces the comprehensive SambaStack documentation suite.

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New Features and Enhancements

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SambaStack Guide

Added the SambaStack Guide, providing step-by-step instructions for deploying, configuring, and managing SambaStack.
  • Setup, installation, and environment configuration
  • User and authentication management (Keycloak, OIDC)
  • Monitoring, logging, and artifact management
  • Bundle and model deployment workflows
  • Common command reference

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SambaStack Models

Added the SambaStack models and bundles page to help customers understand which models are available on SambaStack and how to configure them.
  • Lists all supported models (e.g., Llama 3.3, Llama 4 Maverick, DeepSeek).
  • Shows context length, batch size options, and supported features.
  • Instructions for using the Model list API to check availability in your environment.